The Ghosts book 9 and last. Spoilers ahead for earlier volumes. . .
The Moroaica's grand plan is coming to fruition, and she sent her two lackeys to stop Caina for good. Both opt for plans to are as much character assassination as assassination, and many people die. Her friends and allies do not believe -- those who survive.
But Caina and Corvalis must work around the trouble they caused to get to the plan and stop it. It involves the Sage who comes back from the dead, predictions, jumping from a roof, a man who's certain she killed his son, ways to stop certain forms of necromancy, discoveries that a plan in an early work did succeed and more.